See also:

Seat belts
Make sure that all occupants are wearing their seat belts before driving the vehicle. Correct use of the seat belts Extend the shoulder belt so that it comes fully over the shoulder, but does ...

Installing child restraints
Follow the child restraint system manufacturer's instructions. Firmly secure child restraints to the outside rear seats using the LATCH anchors or a seat belt. Attach the top tether strap when insta ...

Engine/Transmission/Drivetrain/Performance
The IS 250's 2.5-liter V6 engine delivers 204 horsepower at 6,400 RPM and 185 lb.-ft. of peak torque at 4,800 rpm. The Lexus IS 350's 3.5-liter V6 offers a more potent 306 horsepower at 6,400 RPM ...